Total reported releases
Total reported releases at Chaparral Steel Midlothian LP have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Chaparral Steel Midlothian LP
Total reported releases 924k lb rose by an order of magnitude year over year (+481%). Total releases concentrations have more than doubled since 2010.
300 WARD RD, Midlothian, Texas · 331110 · Primary Metals · operated by Gerdau USA INC
Anomaly engine
Notable Signals
Lead And Lead Compounds
Lead And Lead Compounds at Chaparral Steel Midlothian LP have risen 78% since 2010 (through 2024).
Zinc compounds
Zinc compounds releases at Chaparral Steel Midlothian LP rose from 31k lb to 657k lb (21.3×) between 2023 and 2024.
Manganese compounds
Manganese compounds releases at Chaparral Steel Midlothian LP rose from 9k lb to 84k lb (9.7×) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Zinc compounds
Zinc compounds concentrations have more than doubled since 2015.
Lead And Lead Compounds
Lead And Lead Compounds concentrations are up 78% since 2010.
Manganese compounds
Manganese compounds concentrations have more than doubled since 2015.
Copper compounds
Copper compounds concentrations have more than doubled since 2015.
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations have more than doubled since 2015.
Cadmium compounds
Cadmium compounds concentrations have more than doubled since 2015.
Nickel And Nickel Compounds
Nickel And Nickel Compounds concentrations have more than doubled since 2010.
Mercury And Mercury Compounds
Mercury And Mercury Compounds concentrations are roughly unchanged from 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (5 Census block groups, population-weighted demographics): a population of 10,309. Why we surface this →
15.3%
Low-income
27.3%
People of color
8.9%
Under age 5
12.1%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.